Home / 120,988.20-181,482.30-36,748.20

Finding the Fourth Proportional to 120,988.20, 181,482.30 and 36,748.20

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Solution

The fourth proportional to 120,988.20, 181,482.30 and 36,748.20 is: 55,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,988.20 : 181,482.30 = 36,748.20 : x
  2. Step 2: Convert to fraction form
    120,988.20/181,482.30 = 36,748.20/x
  3. Step 3: Cross multiply
    120,988.20x = 181,482.30 × 36,748.20
  4. Step 4: Simplify right side
    120,988.20x = 6,669,147,856.86
  5. Step 5: Solve for x
    x = 6,669,147,856.86/120,988.20
  6. Step 6: Final answer
    x = 55,122.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.